Corellon Larethian, Prime Material

Fey Ancestor. Corellon has advantage on saving throws against being charmed and magic can’t put them to sleep

Beguiling Presence. Any creature that starts its turn within 240 feet of Corellon and is aware of their presence must make a DC 26 Wisdom saving throw. On a failed save, the creature becomes charmed by and frightened of Corellon for 1 minute. While charmed or frightened in this way, the creature has disadvantage on ability checks and saving throws. The charmed or frightened creature can repeat the saving throw at the end of each of its turns, ending both effects on itself on a success. On a successful save, the creature becomes immune to Corellon's Beguiling Presence for 24 hours.

Whenever Corellon deals damage to a creature charmed in this way, the creature can repeat the saving throw, ending both effects on itself on a success.

Innate Spellcasting.  Corellon's spellcasting ability is Charisma (spell save DC 26, +18 to hit with spell attacks). Corellon can innately cast the following spells, requiring no material components:

At will: misty step, charm person, blur, mirror image, pass without trace, suggestion, Tasha's hideous laughter

3/day each: confusion, dispel magic, charm monster, dominate person, mass suggestion, divine word, Otto's irresistible dance, steel wind strike, greater restoration, cure wounds (5th level)

1/day each: heal, dominate monster, glibness, crown of stars (9th level)

Legendary Resistance (5/Day). If Corellon fails a saving throw, they can choose to succeed instead.

Magic Resistance. Corellon has advantage on saving throws against spells and other magical effects.

Magic Weapons. Corellon’s weapon attacks are magical.

Unerring Accuracy. Creatures gain no benefit from half cover or three-quarters cover from Corellon. Attacking at long range doesn't impose disadvantage on Corellon's ranged weapon attack rolls.

Multiattack. Corellon makes 4 attacks with their longbow Amlath'hana or their longsword Sahandrian. They can substitute a Banishing Shot or Staggering Shot for one of these attacks if the Shot is available

Sahandrian. Melee Weapon Attack: +21 to hit, reach 10 ft., one target. Hit: 26 (3d8 + 13) slashing damage. 

Amlath'hana. Ranged Weapon Attack: +21 to hit, range 1320/5280 ft., one target. Hit: 26 (3d8 + 13) piercing damage.

Staggering Shot (Recharge 6). Ranged Weapon Attack: +21 to hit, range 1320/5280 ft., one target. Hit:  10 (3d6) piercing damage and 10 (3d6) psychic damage. Corellon fires a shot piercing both body and mind. A target hit by this attack must make a DC 26 Wisdom saving throw. On a failed save, it has disadvantage on attack rolls and ability checks, and can’t take reactions, until the end of its next turn.

Banishing Shot (Recharge 6). Ranged Weapon Attack: +21 to hit, range 1320/5280 ft., one target. Hit:  10 (3d6) piercing damage and 10 (3d6) force damage. Corellon  attempts to banish his target into a personal demi plane. A target hit by this attack must make a DC 26 Charisma saving throw. While banished in this way, the target’s speed is 0, and it is incapacitated. At the end of its next turn, the target reappears in the space it vacated or in the nearest unoccupied space if that space is occupied.

Change Shape. Corellon magically transforms into any form, while retaining their game statistics (other than their size). While transformed Corellon can choose to gain a flying, climbing and/or swimming speed of 50 ft. as appropriate to the form. This transformation ends if Corellon is reduced to 0 hit points or if they use a bonus action to end it.

Corellon can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. Corellon regains spent legendary actions at the start of their turn.

Attack (Costs 1 Action). Corellon makes an attack with Amlath'hana or Sahandrian

At will Spell (Cost 1 Action). Corellon casts one of his at-will spells

Conjure Volley (Cost 2 Actions). Corellon casts the conjure volley spell

Greater Spell (Costs 3 Actions). Corellon casts one of his innate spells